Multicable, extension hoist conveyer



y 27, 1930- J. D. LAWRENCE 1,760,150

' MULTICABLE, EXTENSION HOIST CONVEYERAI Filed March 8, 1928 2 s t -sh t l 1/ f2. Zawmwce 7 y 1930- J. D. LAWRENCE 1,760,150

MULTICABLE, EXTENSION HOIST CONVEYER Filed March 8, 1928 2 s t -sh t. 2

LFTFU w u '--u w U U a INVENTOI m Law/71272 ae BY WWTTORNEYL Patented May 27, 1930 UNIT 7' S'FTES JOHN D. LAWRENCE, OF SAN DIEGO, CALIFORNIA MUL'IICABLE, EXTENSION I-IOIS'I. CONVEYER Application filed March 8,

This invention relates to building material conveying apparatus and more especially to overhead cabl ways.

An object of the invention is to provide J. multi-cable system for a plurality of travellers onto which may be hitched divers types of receptacles and tackle such as shown in my Patent No. 1,659,109, dated Feb. 1%, 1928, and in my application Ser. No. 164,818, filed Jan. 31, 1928.

A further object is to provide vertically adjustable end standards with cable cross beams whereby to elevate the cables in steps during the erection of various heights of walls, and to provide for variations of spacing of the cables without change of position of the supporting standards.

Another object is to provide a slab or block gripping device and elevating and trans porting means for connecting it to one of the cables and to provide relatively adjustable gripping means for embracing objects of different thicknesses and lengths.

Numerous additional objects, advantages and features of construction and combination, and details of means will be made manifest in the following description of the herewith illustrative embodiment; it being un derstood that modifications, variations and adaptations may be resorted to within the spirit, scope and principle of the invention as it is more directly claimed hereinafter.

Figure 1 is a perspective of the erected system.

Figure 2 is an elevation of one of the standards in vertically extended position.

Figure 3 is a perspective of the slab carrier.

The apparatus includes a pair of end supports each having a sill or sleeper 2 with cross-feet 3 and inner posts 4 firmly supported by braces 5 to the side feet 8. The posts 4 have diagonal braces 6 and form firm bases for the outside standards 7 which are cross-connected by a beam or header 8 which has transverse notches 9 to receive a set of parallel cables 10.

To provide for vertical adjustment of the headers 8 as to the base posts 4 these and the outside standards 7 have registerable 1928. Serial No. 260,228.

holes 11 and when the standards are set at the desired height bolts 12, Fig. 2, are run in and tightened to fix the extended standards 7.

A top cross-brace or shaft 13 is mounted under the header and forms a support for guide pulleys 14, only one of which is shown. The line-pulley shaft 13 is preferably mounted in respective pairs of parts 77, tFhough a modified arrangement is shown in When the standards are properly set at desired distances suitable inner braces 15 are erected for them and end guys 16 are ten-v sioned tight on pegs. Any desired number of cables 10 may now be stretched from header 8 to header 8 and have their positions defined by respective notches 9. The ends of the cables are pegged down and have hitch blocks 17 for tensioning.

The overhead cables are employed as tracks for various tackle and conveyers and there is here shown a traveller 20 having hitch blocks 21 to which is connected a slab carrier. This carrier includes an oblong frame having spaced top eyes 24 to connect to the hoist tackle 21 and has a center, reinforcing web 25. Slidable on the lower bar of the frame 23 are gripping tongs 26 each having shanks with outer notches 27 whereby to seat a sliding link 28 which serves to bind the tong teeth firmly on an interposed slab S, Fig. 1;

The loaded travellers 20 on the respective cables 10 are hauled to and fro by the usual haul rigging, not shown.

What is claimed is:

A hoisting and transporting cableway system, having, in combination, spaced sills each with a pair of braced posts, header beams above respective pairs of posts and having standards adjustable along and secured against adjacent posts, a cable mounted on spaced headers, a traveller operative along the cable, and a top cross-brace shaft for the side standards and being adjustable therewith, and a guide pulley, for a traveller line, supported on the said shaft.

JOHN -D. LAWRENCE. 

